| The electron transport characters in a nanostructure with the periodic magnetic-electric barriers |
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| 作者姓名： | 卢建夺 邵亮 侯阳来 戴厚梅 |
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| 作者单位： | Department of Applied Physics, Wuhan University of Science and Technology, Wuhan 430081, China |
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| 基金项目： | Project supported by the Scientific Research Fund of Hubei Provincial Education Department （Grant No 080043）. |
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| 摘 要： |
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| 关 键 词： | 周期电磁势垒 磁性纳米结构 自旋偏振 共振分裂 电子传输 |
| 修稿时间： | 2007-01-21 |
The electron transport characters in a nanostructure with the periodic magnetic-electric barriers |
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| Lu Jian-Duo, Shao Liang, HouYang-Lai, and Dai Hou-Mei.The electron transport characters in a nanostructure with the periodic magnetic-electric barriers[J].Chinese Physics B,2007,16(10):3080-3086. |
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| Authors: | Lu Jian-Duo Shao Liang HouYang-Lai and Dai Hou-Mei |
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| Institution: | Department of Applied Physics, Wuhan University of Science and Technology, Wuhan 430081, China |
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| Abstract: | This paper detailedly studies the transmission probability, the spin polarization and the conductance of the ballistic electron in a nanostrueture with the periodic magnetic-electric barriers These observable quantities are found to be strongly dependent not only on the magnetic configuration, the incident electron energy and the incident wave vector, but also on the number of the periodic magnetic-electric barriers The transmission coefficient and the spin polarization show a periodic pattern with the increase of the separation between two adjacent magnetic fields, and the resonance splitting increases as the number of periods increases. Surprisingly, it is found that a polarization can be achieved by spin-dependent resonant tunnelling in this structure, although the average magnetic field of the structure is zero. |
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| Keywords: | magnetic nanostructure spin polarization resonance splitting wave-vector filtering |
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